Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 150935: How do you factor by grouping this problem (4x^2 + 20x + 5y +xy) whats the answer?: How do you factor by grouping this problem (4x^2 + 20x + 5y +xy) whats the answer?
Answer by vleith(924) About Me  (Show Source):
You can put this solution on YOUR website!
Use the same principle as we did in the last one
4x^2 + 20x + 5y +xy
4x(x +5) + y(5 +x)
4x(x +5) + y(x+5)
(4x+y)(x +5)
Get it?